Which of the following descriptions of the surface area of a maple-tree leaf best explains the relationship of structure to function ? A. The surface-area to-volume ratio of the leaf is very low to minimize loss of water . B. The surface -area-to-volume ratio of the leaf is very high to minimize waste elimination . C. The surface -area -to-volume ratio of the leaf is very high to maximize CO 2 intake . D. The surface -area -to-volume ratio of the leaf is very low to maximize photosynthesis .